On Thu, Dec 14, 2017 at 9:18 AM, Webert de Souza Lima
<webert.b...@gmail.com> wrote:
> So, questions: does that really matter? What are possible impacts? What
> could have caused this 2 hosts to hold so many capabilities?
> 1 of the hosts are for tests purposes, traffic is close to zero. The other
> host wasn't using cephfs at all. All services stopped.

It's likely you're a victim of a kernel backport that removed a dentry
invalidation mechanism for FUSE mounts. The result is that ceph-fuse
can't trim dentries. We have a patch to turn off that particular
mechanism by default:

https://github.com/ceph/ceph/pull/17925

I suggest setting that config manually to false on all of your clients
and ensure each client can remount itself to trim dentries (i.e. it's
being run as root or with sufficient capabiltities) which is a
fallback mechanism.

-- 
Patrick Donnelly
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